I'm not worried about Cunha. The quality is there, but in the past few games he's become anxious to open his account. It's made his play a little more selfish and he's taken a few long range shots which haven't paid off.
I don't have an issue with it. Everything about his character suggests this is a man who wants to be a main contributor to the team. He measures that contribution via goals and assists and they haven't come -- yet.
Competition with a resurgent Mason Mount will be good for him and for the team. I expect once Cunha opens his account the confidence will grow and he'll turn into a beast for us.